Car construction



..'-. PEARSON CAR CONS TRUCTION Filed Dec. 9. 1921 5 Sheets-Sheet 1@66565/ Ira/emf" I @757, fidr saq Aug. 5 1924.

J. PEARSON CAR CONSTRUCTION beets-Sheet 2 1,503,513 J PEARSON CARCONSTRUCTION Filed Dec. 9. 1921 5 Sheets-Sheet 4 w m v 3 w m. mm 7 1fl?! 0.. Gm M 1%.! w, v l I m; IHHHWAH Hul Q 9 M 3 \J v g r #1 W p m. z

Patented Aug. 5, 1924 1' JOHN rnnason, or CHICAGO, ILLINOIS.

QFICE.

CAR CONSTRUCTION.

'Application filed December 9, 1921. Serial No. 521,118.

To all whom it may concern: 7

Be it known that 1, JOHN Penn son, a citizen of the United States,reslding at Ghicago,in the county of Cook and State of Illinois, haveinvented certain 'new and useful Improvements in a, Car Construction;

of which the-following is a description.

My invention belongs to that general.

class of devices known as car constructions, and relates partlcularly toan improved dump car'construction- The invention has among its objectsthe production of a device 7 mechanism for controlling the-loweringandraising of the dum doors and locking the same in position. any otherobjects and advantages of the construction hereinshown and describedwill be obvious to those skilled in the art from the disclosures hereingiven. I

To this end my invention consists in the,

novel construction, arrangement and combination of parts herein shownand de scribed, and more particularly pointed out in the claims. I

In the drawings, wherein like reference characters indicate like orcorrespondingparts,

Fig. 1 is a cross sectional'view of a. car embodying my improved'construction,-the doors at one side of the car being closed, and thoseat the other side opened;

Fig. 2 is a side elevation of the same; partly in section;

Fig. 3 is a section taken substantially on line 3:3 of Fig. 2;

Fig. 4 is a View similar to that shown in Fig. 2, with the doorslowered;

Fig. 5 is a section taken substantially on line 5-5 of Fig. 2; V

Fig. 6 is a section taken substantially on line 66 ofFig. 2; i

Fig. 7 is a section taken substantially line 77 of Fig. 3;

Fig. 8 is a section takensubstantially on line 8 .8 of Fig. 2;

. Fig. 9 is a detail in perspective of the locking hook; Y

Fig. 10 a detail in perspectiveof the guide for the slidable bar; and

on ftoth'e'sides or legs 6 of the angle bars.

Fig. 11 is a plan view of the car as seen from above. In the preferredembodiment of the invention,.a's illustrated in the drawings, the

rumiing gear or trucks, brake mechanism,

etc. are not illustrated, inasmuch as the f same is not requiredfor thepurpose of describing the present invention,'and further- 'more, thesame may be of'preferred or standard construction. -The main frame ofthe car body may also be considerably modified from that shownin thedrawings without departing from the invention, although the constructionillustrated ispreferred and 1 is believed to be in itself new and novel.

In the preferred construction, a center beam 1, preferably of I form, isextended lengthwise ,oi' the car, the draft rigging being ordinarilysecured thereto at each end. A channelbarl isshown secured to the topflange of the center beam 1, with the side flanges 2 extendingdownwardly,

so as to overlie the to 'flange. of'said center beam. Carriedby thecenter beam 1 are body cross beams'3, the body frame being' carried bythe body bolsters 4. These several parts are secured to the center beamin any'desired manner, and the center beam itself maybe constructed in avariety of ways, as for instance, two channelsarranged back to back, orthe like. The; outer ends of the beams 3 are cut away to form shouldersto receive angle beams 5'6' extending lengthwise and preferablyfrorn'endclearance obtained. Secured to thestakes 7 are the side walls.8 of the car, which are offset at their lower ends, as most clearly"shown in Figs. 1, 5 and. 6, the offset being indicated at 9, and theside walls secured Any number of doors 10 may be arranged at the bottomforming the floor of thecar,

substantially at the center of the car. Each door 10, as shown, isformed with hinge parts 11 which are pivotally secured to brackets 12carried by the channel mounted on the center beam 1, or in an equivalentmanner. In the form shown, the doors when closed are. below the tops ofthe beams 3, there being flanged openings 13 in the floor of the caradapted to be covered by said doors, the flange at said openingextending clownwardly, as shown. When the doors are raised, they formthe floor of the car, and as will be noted, when closed, are slightlybelow the top of the I beam. This is especially advantageous becausewhen the car is loaded with lumber, structural iron or the like, thearticles will bridge over the door openings and transmit the load solelyto the bolster and beams. Thus the doors willnot be loaded nor asliableto strain, bending or breakage as when the load in the car reststhereon. Each of the doors 10 is constructed in any suitable manner, andeach preferably has one or more support or brace bars 14 preferablyofangle iron formation and extending transversely of the door at rightangles to its hinged edge and projecting beyond the free edge of thedoor as at 15. The projecting portion 15 of each angle bar it is bentslightly downwardly and outwardly ofthe door, and an eye-bolt 16, orother suitable fastening device, is secured to the projectingportion 15of the bar to receive one end of a chain or other flexible memberl'Z, aswill be hereinafter described.

.The raising and lowering of the doors is controlled by the chains 17,or by cables or the equivalent, suitably secured to and extended fromthe edge of the door, the same supporting the free edge of the door whenopen, one end of each chain being secured to the eye-bolt 16, as shown.The other ends of the chains are secured by means of an eye-bolt 18, orthe like, to a slidable bar 23, which is slidably arranged on the angle56, or its equivalent as shown, there being one or more bars 23 on eachside of the car. In the preferred construction I control the operationof a portion of the doors on each side of the car from one end of thecar, and the remaining doors from adjacent the other end of the car.This, however, is a matter of preference, as the doors, or the raisingand lowering of the same, may be controlled, for example, from one endonly, or from a point intermediate the ends if so desired.

As most clearly shown in Figs. 5 and 6, the leg-5 of the angle iron 5-43is formed with a series of spaced, elongatedopenings 0r apertures 18therethrough, and arranged at each opening is a sheave member 19, whichis formed with side flanges 20 having a space 21 therebetween (see Fig.8). Each of the sheaves 19 is rotatably mounted on a pivot pin 22secured to the angle member 56 in any suitable manner. The sheaves 19slidably and rotatably support the chains 17 between their ends, thatis, between the eye-bolts 16 and 18. The slidable bar 23 is preferably,but not necessarily L-shaped, or in angle-iron form, as shown moreclearly in Figs. 5 and 6, the horizontal flange being indicated at 24. Aseries of elongated openings 28 are formed in the flange 21, the metalat one end of the opening being turned or bent to form abutment ears 28if desired.

Arranged at suitable points longitudinally of the sides of the car, andas shown, at each of the stakes 7 and secured thereto, are guide members25, said guide members having a slot or groove 26 therethrough (see Fig.10), to slidably receive and engage the free edge of the leg 24 of theslidable bar 23. These guide members 25 may be secured to the stakes 7by rivets or other suitable or equivalent fastening means.

A pawl or hook having ends 26 and 27 is pivoted intermediate said endson each of the pivot pins 22, the upper end 27 adapted to projectthrough elongated apertures 28 formed in the flange 24 of the slidablebar 23 so that as the bar is moved, it will strike and rotate the seriesof locking hooks 26--27, as will be more clearly hereinafter described.Each book has a cam surface 3-1 at its lower end 26, and a cut away edge35 at its upper end 27.

The bar 23 at one end as shown or at any point intermediate the ends issecured to a member 23, which is formed with a threaded portion 30. Thethreaded portion 30 is in threaded engagement with an internallythreaded member or mandrel 31, The mandrel 31 is externally threaded,but in the opposite direction and arranged to threadedly engage abracket or drum 32 suitably secured to the car, as for instance, bybeing extended tangentially, and securing this tangential extension tothe upper end of the leg 6 of the beam 5-6 (Figs. 5 and 6). The threadedmember 31 is formed as at 33, substantially similar to a capstan, sothat it may be engaged by an operating bar or the like to shift thesame, or rotate it in either direction. The parts may be arranged witheither end toward the center of the car.

The operation of the device may be briefly described as follows:Assuming that the doors are in the position shown in Figs. 2, 5, 6 and7, that is, the doors are closed or raised, then to drop the doors, thecapstan (see Fig. 7) is engaged by a rod or the like and rotated.Because of the threaded engagement, the same will move through thebracket, as indicated,- to the left (see Fig. 4). The threaded rod 30 inengagement there with on the interior, being oppositely threaded andprevented from rotating by its rigid connection to the slidable bar 23,will ofth'e member 31 lengthwise, but owing to the "threaded engagement,the'r'od is'also advanced relative to the member 31. As the partsmove,the slidable bar 23 is of course moved until the rear wall of theapertures 28',- that' is, the" right hand end of the aperture,positively engages the tiltable hooks 2'627"totilt them about the pivotpins 22,

thus releasing the doors and holding the necks -inoperative.. 1

"To raise the doors, the reverse operation takes place, that is,thebar23 will be moved tit-the right, "lifting the doors y me of thechains 17 until the doors are almostfully or completely dlosed, at whichtime the bent ears. 28 .atthe forward end Walls of the elongatedapertures 28 has positively en gaged and tilted the hooks 26-27 aboutthe pivot pins 22, causing the tapered 'or cam surfaces 3A of thehookstoengage the projections 15 of the brace rod 14: with substantiallya camming action to move the door 10 toward the floor so as to clamp itthereagain'st.

It will be noted that the rear ends of the upper portion 27 of the hookshave been ohamfered or cut away as at 35, so that when the slidable bar23 is moved to the left, said bar will pivotally move the hooks to tiltthem out of the way to disengage from the holding engagement with thedoors and hold them inoperative as the slidable bar continues to movepast the hooks, as

shown in Fig. at. When the doors are raised, the upper ends of the hookswill reengage in the apertures 28 and be positively aotuated when thedoors have been substantially completely lifted to cause the cammingaction or final locking of the hooks as just described.

It will be noted that there is no strain.

whatever on the chains in so far as supporting the closed doors isconcerned. Neither is there any direct transverse strain on the slidablebar 23, as the entire load is supported by the angle beam 5-6. It shouldbe noted that the threaded or screw construction for operating thesliding'door, in itself, forms a most simple and eflicient lookingmechanism, and that by means of it the doors may be supported at anypoint intermediate their extreme positions of up or down.

Having thus described my invention, it is obvious that variousimmaterial modifications may be made in the same without departing fromthe spirit of my invention; hence -do not wish to be understood aslimiting myself to the exact form, construction, arrangement andcombination of parts herein shown and described, or uses men tioned. c e

What I claim as new and desire to secure by Letters Patent is:

1. Ina dump car, a door, means slidably movable on said car forcontrolling the movement of said door, and a hook pivotally mounted onsaid car, engageable with said door to hold it in raisedposition, saidslidably mova'ble means positively actuating said hook to itsdoor-engaging position.

2. In a dump car, a door hinged thereto at one edge, means slidable onsaid car for controlling the movement of said door, and a hook pivotallymounted on said car and engageable with said door at its free edge tohold it in raised position, and positively actuated by said means tocontrol the doorengaging and releasing movement of said hook. I l l I 3.In a dump car, a door hinged thereto, a bar slidable on. said car frame,a flexible member connected at one end directly to said door and at itsother end to said slidable bar and controlled thereby, and a hookcontrolled by said slidable bar to lock said door in its liftedposition. 7

4. In a dump car, a door hinged thereto, a bar slidable on said carframe, .a flexible member connected at one end directly to said door andat its other end to said slidable bar and controlled thereby, and a hookmounted on the carframe controlled by said slidable bar and operative atsubstantially the end of the lifting movement of the door to locksaiddoor in its lifted position.

5. In a dump car, a door hinged thereto,

a flexible member connected at one end directly to said door and at itsother end to said slidable bar and controlled thereby, and a hookpivoted on said car frame and posi- ,a bar slidably mounted on said carframe,

tively actuated by said slidable bar in one I direction of movement atsubstantially the end of the lifting movement of the door to lock saiddoor in its lifted position and actuated in the other direction ofmovement to positively release itself from said door.

7. In a dump car, a door hinged thereto at one edge, means for liftingsaid door, and

hooks on a stationary part of said car, operable by said lifting meansonly at substantially the completion of said lifting and having camsurfaces engageable With said door to hold it raised.

8. In a dump car, a door hinged thereto at one edge, a rod slidablymounted on said car, flexible chains connected at one end di rectly tosaid door and at the other end to said slidable rod and operatedthereby, and hooks on said stationary car frame operable by saidslidable rod at substantially the end of the lifting movement of saiddoor to lock said door in position.

9. In a dump car, a door hinged thereto at one edge, a slot-ted rodslidably mounted onsaid car, flexible chains connected at one end tosaid door and at the other end to said slidable rod and operatedthereby, and hooks on said car projecting through said slot so as to bepositively actuated by said slidable member at substantially the end ofthe lifting movement of said door to lock said door in position.

10. In a dump car, a door hinged thereto, a slidable bar on said car,flexible chains operably connecting said door to said bar, hooks fixedon a stationary part of said car movement of the bar in the oppositedirection to release said hook to permit said doors to drop.

11. In a dump car, a door hinged thereto, a slotted slidable bar on saidcar, flexible chains operably connecting said door to said bar, hookspivoted on said car and adapted to project through said slot and beactuated by engagement With the end walls thereof in both directions ofreciprocation of said bar at substantially the end of lifting of saiddoor to lock it in position, and at substantially the beginning ofmovement of the bar in the opposite direction to release said hook andhold it inoperative to-permit said doors to drop.

In testimony whereof, I have hereunto signed my name in the presence oftwo subscribing Witnesses.

JOHN PEARSON. Witnesses:

ROY W. HILL, 7 RUTH M. EPHRAIM.

